Re: case 648 in reply to mike, 05-08-2002 05:18:22
The one nearest the travel spool. Have you replaced the Hydraulic oil lately? I've found that the oil breaks down after a year and once changed, pressures go right back up, along with flow. Pressure should be set at 2250 psi.
Re: Re: Re: Re: Re: case 648 in reply to mike, 05-09-2002 05:13:32
I do not know if it is the same or not, but if it is a high quality 15w40 motor oil, you should be good. As for how much oil it takes? My 444 with remote hydro pto takes about 12 Qts. The 648 is a little more complex, so I would guess about 12/15 qts. Most of the cases should have the fluid about 5, to 6 inches below the top of the tank. Good luck.
Re: Re: Re: case 648 in reply to mike, 05-09-2002 01:04:10
On the control valve located underneath the floorboard you see a two spool valve. The one on the left side (input) is the travel spool that controls the direction and speed of travel, the spool to the right (pwr beyond side) is the attachment lift spool set up for lifting the mower deck and operating the three point hitch. Hope this helps explain it a little more. Those control valves differ from the 200 and 400 series in that it also has a power beyond fitting for directing flow on to the loader and backhoe.
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